There is a time to cut your losses. It seems to me that teachers unions are not only losing the fight to provide a quality education in America's cities but they are being unfairly and irreparably harmed for the effort. It may be time to pull out.
Let the philanthropists, oligarchs, big city politicians, urban right-wing parent organizations, and profit-seeking educational entrepreneurs have at it - ALL OF IT.
The teachers unions would be wise to retreat to the places where education can be practiced sanely. A place where expectations are matched by parental attention, an audience that's receptive, and with sufficient resources to do the job.
It will not be long before those who inherit the task will be calling for an end to standardized tests as a metric of success. In fact they'll be angry that public schools with unions have an unfair advantage in providing superior product. It'll be called class warfare and racist and unfair. It'll be a fun lesson in educational pragmatism.